Recommended light signals for standing starts in circuit events

Practice session procedure

Standard start procedure

Race abort procedure

Start abort procedure one

Start abort procedure two

The following procedures, based on the “Race weekend light procedures” of the Formula 1 World Championship, are referred to as an example in Article 4.3.1 of Appendix H to the International Sporting Code, for use in events where the starting light installation permits them. Any other starting procedures used should not be in contradiction with them (i.e. use of a same light combination with a different signification). In all cases, the start procedure must be clearly described in the Supplementary Regulations of the event.

Index:

Practice session procedure

If a practice has to be stopped

The orange start lights will come on and flash for three minutes and the pit exit lights will turn from green to red.

The end of every practice

The red start lights will be illuminated and the pit exit lights will turn from green to red.

These lights will stay on for three minutes.

During every practice session

The green start lights remain on and if another car on the track is approaching the pit lane exit the pit exit lights flash blue to warn drivers leaving the pits.

Start of every practice session

The green start lights are illuminated and the pit exit lights will turn from red to green to indicate that the pit lane is open.

These lights will stay on until the end of the session unless it is interrupted.

Fifteen minutes to the start of the formation lap

All the red start lights are illuminated, the pit lane exit lights turn from green to red and the horn is activated to indicate the pit exit is closed.

Ten minutes to the start of the formation lap

The red start lights will flash on and off twice and the horn is activated.

Five minutes to the start of the formation lap

One pair of the red start lights is extinguished and the horn is activated.

Thirty minutes to the start of the formation lap

No start lights are illuminated and the pit exit lights turn from red to green to indicate the pit lane is open.

Seventeen minutes to the start of the formation lap

The horn is activated to indicate there are two minutes until the pit lane will be closed.

Standard start procedure

One more pair of red start lights is extinguished and the horn is activated.

One more pair of red start lights is extinguished and the green start lights are illuminated.

All the green start lights are extinguished.

One more pair of red start lights is extinguished and the horn is activated.

One more pair of red start lights is extinguished and the horn is activated.

Three minutes to the start of the formation lap

One minute to the start of the formation lap

Fifteen seconds to the start of the formation lap

Start of the formation lap

Thirty seconds into the formation lap

One second

Two seconds

Three seconds

Four Seconds

When all the cars are in position on the grid

One more pair of red start lights is illuminated.

One more pair of red start lights is illuminated.

One more pair of red start lights is illuminated and the cars are considered “under starter’s orders”.

The five second signal will be given by illuminating one pair of red start lights.

One more pair of red start lights is illuminated.

After a preset delay of between 0.2 and 3.0 seconds, the race is started by all the red start lights being extinguished. After all the cars have passed the pit exit the red pit exit lights are replaced by green, this is the signal for cars starting from the pit lane to join the race.

If a car on the track is approaching the pit lane exit the pit exit lights will flash blue to warn drivers leaving the pits.

The start

During the race

If the procedure has to be aborted after the start of the formation lap and before the start signal is given.

Ten minutes to the start of the formation lap

Delay before the start of the formation lap

If the procedure has to be aborted before the start of the formation lap.

If the start needs to be delayed after the pit lane has closed and before the start of the formation lap - the orange start lights will flash until the restart time is confirmed, when this is done the red start lights will be illuminated. At this time the horn will be activated in two second bursts for ten seconds.

The red start lights will flash twice, the horn is activated and the normal start procedure is resumed.

Three minutes to the start of the new formation lap

Start delay before the race start signal is given

If the start needs to be delayed before the race start signal is given the orange start lights will flash and, if the five second signal has already been given, the countdown lights will freeze in their current state.

All start lights will be extinguished when the restart time is confirmed.

Under normal circumstances there will be a five minute delay if this procedure is followed.

Three sets of the red start lights will be illuminated, the horn will be activated and the normal start procedure will resume.

Start abort procedure one

Start abort procedure two

Race abort procedure

Ten minutes after the abort signal was given

Three minutes to the start of the new formation lap

Two sets of red start lights are extinguished, the horn is activated and the normal start procedure is resumed.

When the race restart time is confirmed

All the start lights will be extinguished. The pit exit lights will stay green for ten minutes from the moment the race abort signal was given.

If the race has to be stopped

The red start lights will be illuminated and the orange start lights will flash. At this time the green pit exit lights will also be illuminated.

The red start lights are illuminated, this will normally be the ten minute signal and the lights will flash twice. The red pit exit lights will also be illuminated and the horn is activated, the pit lane is now closed.

If for any reason the stoppage needs to be longer than twenty minutes, the red start lights will not flash at this time.